Juvenile Onset Huntington Disease (JHD) is a form of Huntington disease (HD) that affects children and teenagers. Huntington’s disease is a hereditary neurodegenerative disorder that is characterized by progressively worsening motor, cognitive, behavioral, and psychiatric symptoms. JHD is caused by a mutation of the huntingtin gene called a “CAG repeat expansion”. The mutation results in gradual neuronal degeneration in the basal ganglia of the brain, which is responsible for coordination of movements, thoughts, and emotions. As JHD progresses, other regions of the brain undergo neuronal degeneration with diffuse and severe brain atrophy that is comparable to late stage Alzheimer disease. To find out more about JHD, go here.

The Juvenile Onset HD Resource Directory may be found here:
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